DO NOT, DO NOT buy Premiere Pro CS5. I had CS3 at my previous job. Loved it! It came with a set of manuals and a help function embedded in the program. With CS5 the manuals are buried deep in the bowels of the internet basement (I had to speak with India for over 20 minutes to find those) and there is NO onboard help function unless you have internet connectivity. Due to network security reasons, I cannot have my editing computer hooked up to the internet so therefore I have ABSOLUTLY NO "help" function with the program. I believe that there are several other features such as SFX that are dependent upon connectivity also. Had I known this I would not have recommended purchase of this software. I have to believe there are a lot more editors like me who working on a machine without internet connectivity. Adobe CS5 has zero support for people like us.